Leonov’s walk on … On 18 March 1965 Soviet cosmonaut Alexei Leonov became the first person to leave a space capsule and, tethered to it, float freely in orbit – to space-walk.

Alexei Leonov was a pioneer in multiple ways for space exploration, debuting practices and relationships vital to humanity’s continued presence and work in space today aboard the International ...

MOSCOW, October 11. /TASS/. The European Space agency (ESA) has offered condolences over the death of Russian cosmonaut Alexey Leonov, the first human to walk in space, ESA wrote on Twitter on Friday.